Judging of the Waste 2 Art competition was carried out at Eskbank House on Thursday, May 17.
The art prize focuses on reused and recycled materials, challenging people to think differently about waste.
The exhibition at Eskbank House will be officially opened by Lithgow City Council Mayor Stephen Lesslie on Saturday, May 19 at 2pm, and the winners will be announced.
The exhibition will remain on show at Eskbank House until June 10.
The winning entries in each section will then be entered in the regional competition to be held at Narromine.